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// file : bpkg/manifest-serializer -*- C++ -*-
// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#ifndef BPKG_MANIFEST_SERIALIZER
#define BPKG_MANIFEST_SERIALIZER
#include <string>
#include <iosfwd>
#include <cstddef> // size_t
#include <stdexcept> // runtime_error
namespace bpkg
{
class manifest_serialization: public std::runtime_error
{
public:
manifest_serialization (const std::string& name,
const std::string& description);
std::string name;
std::string description;
};
class manifest_serializer
{
public:
manifest_serializer (std::ostream& os, const std::string& name)
: os_ (os), name_ (name) {}
const std::string&
name () const {return name_;}
// The first name-value pair should be the special "start-of-manifest"
// with empty name and value being the format version. After that we
// have a sequence of ordinary pairs which are the manifest. At the
// end of the manifest we have the special "end-of-manifest" pair
// with empty name and value. After that we can either have another
// start-of-manifest pair (in which case the whole sequence repeats
// from the beginning) or we get another end-of-manifest pair which
// signals the end of stream.
//
void
next (const std::string& name, const std::string& value);
// Write a comment. The supplied text is prefixed with "# " and
// terminated with a newline.
//
void
comment (const std::string&);
private:
void
check_name (const std::string&);
// Write 'n' characters from 's' (assuming there are no newlines)
// split into multiple lines at or near the 78 characters
// boundary. The first line starts at the 'column' offset.
//
void
write_value (std::size_t column, const char* s, std::size_t n);
private:
enum {start, body, end} s_ = start;
std::string version_; // Current format version.
private:
std::ostream& os_;
const std::string name_;
};
}
#endif // BPKG_MANIFEST_SERIALIZER
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